阅读说明：本技术 触点装置、电磁继电器和电子装置 (Contact making device, electromagnetic relay and electronic device ) 是由 原野智和 荒谷达生 于 2018-04-04 设计创作，主要内容包括：所提供的是通过加速所产生的电弧移动而能够抑制固定触点与可动触点的劣化的触点装置、电磁继电器和电子装置。该电子装置(A1)设置有可动触头(10)、在一个方向上排列的一对可动触点(11)、一对固定端子(12、13)以及一对固定触点(14、15)。一对固定端子(12、13)中的至少一个固定端子具有触点保持部(12a、13a)。触点保持部(12a、13a)具有第一固定延长部(120a、130a)和第二固定延长部(120b、130b)。关于在一个方向上流入固定触点的电流分量或在一个方向上流出固定触点的电流分量,第一固定延长部(120a、130a)侧的电流分量的电流量大于第二固定延长部(120b、130b)侧的电流分量的电流量。(Provided is contact making device, electromagnetic relay and the electronic device by accelerating the mobile deterioration for being able to suppress fixed contact and moving contact of generated electric arc.A pair of of moving contact (11), a pair of of fixing terminal (12,13) and a pair of fixed contacts (14,15) that the electronic device (A1) is provided with movable contact (10), arranges in one direction.At least one fixing terminal in a pair of of fixing terminal (12,13) has contact holding portion (12a, 13a).Contact holding portion (12a, 13a) has first fixed extension (120a, 130a) and second fixed extension (120b, 130b).The current component of fixed contact is flowed out about the current component for flowing into fixed contact in one direction or in one direction, and the magnitude of current of the current component of first fixed side extension (120a, 130a) is greater than the magnitude of current of the current component of second fixed side extension (120b, 130b).)

1. a kind of contact making device comprising:

Movable contact；

A pair of of moving contact is set to the movable contact and is arranged side-by-side in one direction；

A pair of of fixing terminal is arranged side-by-side in the one direction in a manner of towards the movable contact；And

A pair of fixed contacts is arranged at the pair of fixing terminal respectively,

The movable contact is configured to move back and forth between closed position and open position, wherein in the closed position Place, the pair of moving contact is contacted with the pair of fixed contact respectively, in the open position, the pair of movable touching Point does not contact with the pair of fixed contact,

At least one fixing terminal selected from the pair of fixing terminal, which is included in, connects the closed position and the open position The contact holding portion of the side the set movable contact facing upwards,

The contact holding portion includes:

First fixed extension, in the one direction from the fixed contact of one fixing terminal towards another fixation Terminal is prominent；With

Second fixed extension, it is prominent far from another fixing terminal from the fixed contact,

For flow into the one direction the fixed contact current component or in the one direction outflow described in The current component of fixed contact, the current component for flowing through the described first fixed extension have than flowing through the described second fixed extension The big magnitude of current of the current component in portion.

2. contact making device according to claim 1, which is characterized in that

The fixing terminal with the contact holding portion in the pair of fixing terminal includes lead division, and the lead division is opposite On the direction intersected with one direction and the structure connecting with external device (ED) is connected in contact holding portion configuration Part, and

The lead division by relative to it is vertical with one direction and pass through the fixed contact axis it is asymmetrical in a manner of It is connected to the contact holding portion.

3. contact making device according to claim 2, which is characterized in that

The lead division is electrically connected to the described second fixed extension via the described first fixed extension.

4. contact making device according to any one of claim 1 to 3, which is characterized in that

The pair of fixing terminal includes the contact holding portion,

The movable contact movably prolongs in the two sides of the pair of moving contact including a pair outstanding in the one direction Long portion,

Selected from the group being made of the corresponding second fixed extension of the pair of movable extension and the pair of fixing terminal At least a pair of of extension has towards another pair extension protrusion outstanding.

5. contact making device according to claim 4, which is characterized in that

By being bent the respective end of the extension so that the end is respectively formed obtuse angle and the protrusion is arranged.

6. contact making device according to any one of claim 1 to 5, which is characterized in that

At least a pair of contact selected from the group being made of the pair of moving contact and the pair of fixed contact has diameter court The multistage shape reduced to another pair contact towards described at least a pair of contact.

7. contact making device according to claim 1, which is characterized in that

The movable contact is configured to shift and rotating around one direction as pivot center, so that described A pair of of moving contact moves back and forth between the closed position and the open position.

8. contact making device according to claim 1, which is characterized in that

At least one fixing terminal selected from the pair of fixing terminal includes point for being divided into multi-disc and being joined to external device (ED) Cut portion.

9. contact making device according to claim 8, which is characterized in that

The cutting part is divided into first and second, described first and it is described second have than described first with Big termination width is spaced between described second.

10. a kind of electromagnetic relay comprising:

Contact making device described in any one of claims 1 to 9；With

Calutron including coil,

Whether the movable contact is shifted by excitation according to the coil.

11. a kind of electronic device comprising:

Electromagnetic relay；With

Substrate is installed for the electromagnetic relay,

The electromagnetic relay includes:

Contact making device described in claim 8 or 9；With

Calutron comprising coil and be configured to shift the movable contact according to whether coil is motivated.

Technical field

The present disclosure relates generally to contact making device, electromagnetic relay and electronic devices, more particularly, it relates to quilt It is configured to contact making device, electromagnetic relay and the electronic device of cutting high current.

Background technique

Various types of electromagnetic relays has been proposed in the art (referring for example to patent document 1).Patent document 1 Illustrating a kind of electromagnetic relay including at least two pairs contacts, each pair of contact is made of fixed contact and moving contact, Gu Fixed contact and moving contact are designed to drive by electromagnetic mechanism and open and close.In the electromagnetic relay of patent document 1 In, at least two pairs of contacts are arranged to be separated from each other.

Recently, a kind of electromagnetic relay with large capacity is provided.This large capacity electromagnetic relay has big touching Point electric current.Therefore, when generating electric arc between its fixed contact and moving contact, the contact structure of fixed contact and moving contact Part abrasion melts so that contact deteriorates, it is thus possible to cause some unstable of the operation of electromagnetic relay.

Summary of the invention

Therefore, in view of above-mentioned background, the object of the present invention is to provide a kind of contact making device, electromagnetic relay and electronics dresses It sets, is all configured as reducing the deterioration of fixed contact and moving contact by accelerating the movement of generated electric arc.

Contact making device according to an aspect of the present invention includes: movable contact；A pair of of moving contact is set to described It movable contact and is arranged side-by-side in one direction；A pair of of fixing terminal, in institute in a manner of towards the movable contact It states and is arranged side-by-side on a direction；And a pair of fixed contacts, it is arranged at the pair of fixing terminal respectively.It is described movable Contact is configured to move back and forth between closed position and open position, wherein in the closed position, it is the pair of can Movable contact is contacted with the pair of fixed contact respectively, in the open position, the pair of moving contact not with it is described A pair of fixed contacts contact.At least one fixing terminal selected from the pair of fixing terminal is included in the connection closed position With the contact holding portion of the side of the open position movable contact facing upwards.The contact holding portion includes: first solid Determine extension, it is prominent from the fixed contact of one fixing terminal towards another fixing terminal in the one direction； It is prominent far from another fixing terminal from the fixed contact with the second fixed extension.For in one direction The upper current component for flowing into the fixed contact or the current component for flowing out the fixed contact in the one direction, flow through The current component of described first fixed extension has the magnitude of current bigger than the current component for flowing through the described second fixed extension.

Electromagnetic relay according to another aspect of the present invention includes: above-mentioned contact making device；With the electromagnetic installing including coil It sets.Whether the movable contact is shifted by excitation according to the coil.

Electronic device according to another aspect of the invention includes: electromagnetic relay；And substrate, supply the electromagnetism relay Device installation.The electromagnetic relay includes: above-mentioned contact making device；And calutron comprising coil and be configured to basis Whether coil is motivated to shift the movable contact.

Detailed description of the invention

The A of Fig. 1 is the perspective view for showing a part of electromagnetic relay according to an illustrative embodiment of the invention；

The B of Fig. 1 is the sectional view for showing the electromagnetic relay when overlooking a part of relay；

Fig. 2 is the sectional view of electromagnetic relay；

Fig. 3 is the exploded perspective view of electromagnetic relay；

The B of the A and Fig. 4 of Fig. 4 show the shape of the fixing terminal for electromagnetic relay setting；

The A of Fig. 5 is the sectional view of a part of electromagnetic relay, and it is on state to show contact making device；

The B of Fig. 5 is the sectional view of a part of electromagnetic relay, shows contact making device and is in OFF state；

Fig. 6 is the sectional view of the electromagnetic relay when overlooking a part of relay, shows how electric arc moves；

Fig. 7 illustrates how installation electromagnetic relay；

The A of Fig. 8 is the front view for being not yet installed on the electromagnetic relay of substrate；

The B of Fig. 8 is the front view for being installed on the electromagnetic relay of substrate；

Fig. 9 is the front view for being welded in the electromagnetic relay of substrate；

The B of the A and Figure 10 of Figure 10 show the shape of the fixing terminal according to the first variation example；And

Figure 11 shows the shape of the movable contact according to the second variation example.

Specific embodiment

Note that the embodiment and its variation example that are described below are only examples of the invention, and it is understood not to Limitation.But can in the case where not departing from true spirit and range of the invention according to design alternative or it is any other because Element easily modifies those embodiments and variation example in various ways.

(embodiment)

Illustrate electromagnetic relay 1 according to illustrative embodiments now with reference to Fig. 1 to Fig. 6.

In the following description, the direction of two moving contacts 11 (11a, 11b) and two fixed contacts 14,15 facing each other Hereinafter referred to as " left and right directions "." upper and lower is hereinafter referred to as along the longitudinally of the length of fixing terminal 12,13 To " (B and Fig. 2 of A, Fig. 1 referring to Fig.1).

In the following description, hereafter up and down direction will also be referred to as " first axle direction ", and left and right directions hereafter will also be by Referred to as " second axis direction ", and hereafter the direction vertical with both first axle direction and second axis direction will also be claimed For " third axis direction ".

Note that although showing the arrow for indicating these directions (that is, upper and lower, left and right) in the B of Fig. 2 to Fig. 4, These arrows only show as the auxiliary of explanation and are non-physical.It should also be noted that these directions do not limit how Use the electromagnetic relay 1 according to the embodiment.

<overall construction of the embodiment>

As shown in Figures 2 and 3, electromagnetic relay 1 include 10, two fixing terminals 12 and 13 of movable contact, coil 20 with And armature 60.

Movable contact 10 includes two moving contacts 11 (11a, 11b).Note that when needing to make two moving contacts 11 each other When differentiation, hereafter moving contact 11 will be known respectively as " moving contact 11a " and " moving contact 11b ".

Fixing terminal 12,13 respectively includes fixed contact 14,15.The fixed contact 14 of fixing terminal 12 is in the lateral direction Towards moving contact 11a.The fixed contact 15 of fixing terminal 13 is in the lateral direction towards moving contact 11b.

Moving contact 11a, 11b move back and forth between closed position and open position, in closed position, moving contact 11a, 11b respectively with moving contact 11a, 11b respectively for fixed contact 14,15 contact, in open position, moving contact 11a, 11b are not contacted with fixed contact 14,15.

Moving contact 11a, 11b is allowed to be closed around the third axis direction rotation movable contact 10 as pivot center Move back and forth between position and open position.

Be powered to coil 20 can be between armature 60 and iron core 40 (will illustrate) and armature 60 and the (general of magnetic yoke 50 later Later illustrate) between generate electromagnetic force.The electromagnetic force shifts armature 60.As armature 60 rotates, movable contact 10 is shifted, I.e. movable contact 10 is around the third axis direction rotation as pivot center.

Fixing terminal 12 is electrically connected to a terminal of AC power source, and fixing terminal 13 is electrically connected to the another of AC power source Terminal.External device (ED) is connected between fixing terminal 12 and AC power source or is connected between fixing terminal 13 and AC power source.

Next, will be explained in the electromagnetic relay 1 according to the embodiment.

It may be used as closing the circuit that flows through of alternating current of about 100A according to the electromagnetic relay 1 of the embodiment, It is used for example as the cut-out relay in parallel (parallel-off realy) being arranged for power governor.Note that the numerical value is only It example and is not necessarily to be construed as limiting.It can be by opening and closing contact dress according to the electromagnetic relay 1 of the embodiment A1 (will illustrate later) is set to start and stop the power supply from AC power source to external device (ED).

It is monostatic relay according to the electromagnetic relay 1 of the embodiment, is the class of so-called " hinged relay " Type.It as shown in Figures 2 and 3, include contact making device A1, calutron A10 (driving according to the electromagnetic relay of the embodiment 1 Mechanism) and shell C1.

<explanation of contact making device A1>

As shown in figure 3, contact making device A1 includes that there are two the movable contacts 10 and fixing component 16 of moving contact 11 for setting.

Fixing component 16 includes the fixing terminal 12 with fixed contact 14 and the fixing terminal 13 with fixed contact 15. Fixing terminal 12 and 13 is arranged side-by-side (B and Fig. 2 referring to Fig.1) on third axis direction.

As described above, movable contact 10 and fixing terminal 12,13 are configured as facing each other (reference figure in the lateral direction 1 B and Fig. 2).

In this embodiment, a pair of of moving contact 11 has circular shape when observing in left-right direction, and a pair of Moving contact 11 is formed with the shape of multistage (such as being two sections in this embodiment), and diameter is towards moving contact 11 towards fixed contact 14 reduce.In this embodiment, moving contact 11 include top end part 110 and backoff portion 111, Wherein top end part 110 has circular shape when observing in left-right direction, and the diameter of backoff portion 111 is greater than the straight of top end part 110 Diameter (B referring to Fig.1).

Fixed contact 14,15 also has circular shape when observing in left-right direction, and fixed contact 14,15 is formed For multistage (such as being two sections in this embodiment), diameter towards fixed contact 14,15 towards moving contact 11 subtract It is small.In this embodiment, fixed contact 14 (15) also includes top end part 140 (150) and backoff portion 141 (151), top end part 140 (150) have circular shape when observing in left-right direction, and the diameter of backoff portion 141 (151) is greater than top end part 140 (150) Diameter.

Fixing terminal 12 is made of conductive material (such as copper alloy), and (contact is kept including first end sub-portion 12a Portion), second end sub-portion 12b and third terminal portion 12c (lead division), wherein first end sub-portion 12a is parallel to up and down direction extension And there is writing board shape, second end sub-portion 12b is parallel to left and right directions and extends and have writing board shape, and third terminal portion 12c is flat Row extends in up and down direction and with writing board shape (referring to the A of Fig. 4).First end sub-portion 12a and third terminal portion 12c is via Two-terminal portion 12b is continuous each other.The top of first end sub-portion 12a is located above second end sub-portion 12b, third terminal portion 12c's Top is located at below second end sub-portion 12b.

Fixing terminal 13 is made of conductive material (such as copper alloy), and (contact is kept including first end sub-portion 13a Portion), second end sub-portion 13b and third terminal portion 13c (lead division), wherein first end sub-portion 13a is parallel to up and down direction extension And there is writing board shape, second end sub-portion 13b is parallel to left and right directions and extends and have writing board shape, and third terminal portion 13c is flat Row extends in up and down direction and with writing board shape (referring to the B of Fig. 4).First end sub-portion 13a and third terminal portion 13c is via Two-terminal portion 13b is continuous each other.The top of first end sub-portion 13a is located above second end sub-portion 13b, third terminal part 13c Top be located at below second end sub-portion 13b.

The first end sub-portion 12a of fixing terminal 12 has opening portion 12d.By so that fixed contact 14 passes through opening portion Fixed contact 14 is assembled in the 12d of opening portion by the mode of 12d, and then fixed contact 14 and first end sub-portion 12a caulked exist Together, so that fixed contact 14 is fixed on fixing terminal 12.The first end sub-portion 13a of fixing terminal 13 has opening portion 13d.It is logical It crosses and fixed contact 15 is assembled in the 13d of opening portion in a manner of making fixed contact 15 pass through opening portion 13d, then it will fix Contact 15 is together with first end sub-portion 13a caulked, so that fixed contact 15 is fixed on fixing terminal 13.The of fixing terminal 12 The direction one portion of terminal 12a and first end sub-portion 13a of fixing terminal 13 mobile towards movable contact 10 (or moving contact 11) (B referring to Fig.1).Selectively, fixed contact 14 can be formed as one with fixing terminal 12.Similarly, fixed contact 15 It can also be formed as one with fixing terminal 13.

Fixing terminal 12 has portions cut portion 12e between first end sub-portion 12a and second end sub-portion 12b.Similarly, Fixing terminal 13 also has portions cut portion 13e between first end sub-portion 13a and second end sub-portion 13b.

Fixing terminal 12 further include: the first fixed extension 120a, from fixing terminal 12 on third axis direction Fixed contact 14 is prominent towards fixing terminal 13 (i.e. inwardly)；Extension 120b is fixed with second, on third axis direction It is prominent far from fixing terminal 13 (i.e. outward) from the fixed contact 14 of fixing terminal 12.Similarly, fixing terminal 13 further include: the One fixed extension 130a, the fixed contact 15 on third axis direction from fixing terminal 13 towards fixing terminal 12 (i.e. It is inwardly) prominent；Extension 130b is fixed with second, on third axis direction far from the fixed contact 15 of fixing terminal 13 Fixing terminal 12 (i.e. outward) is prominent.

Since fixing terminal 12 has notch 12e, so the third terminal portion 12c of fixing terminal 12 is via Second terminal The fixed extension 120a of portion 12b and first is electrically connected to the second fixed extension 120b.Similarly, since fixing terminal 13 has Notch 13e, so the third terminal portion 13c of fixing terminal 13 is via the fixed extension 130a of second end sub-portion 13b and first It is electrically connected to the second fixed extension 130b.

Movable contact 10 is made of conductive material (such as copper alloy).Movable contact 10 is formed as writing board shape, length It is limited along third axis direction.Movable contact 10 is provided with two moving contacts 11 being arranged side-by-side on third axis direction (11a, 11b) (B and Fig. 2 referring to Fig.1).Moving contact 11a, 11b respectively for fixed contact 14,15 (B referring to Fig.1 and Fig. 2).There are two fixation hole, which is arranged side-by-side the tool of movable contact 10.It is logical It crosses and moving contact 11a, 11b is respectively assembled in two fixation holes in a manner of making moving contact 11a, 11b pass through fixation hole One in another and make moving contact 11a, 11b together with 10 caulked of movable contact, keep moving contact 11a, 11b solid Due to movable contact 10.Optionally, moving contact 11a, 11b can be formed as one with movable contact 10.

Movable contact 10 includes movably prolonging positioned at the outstanding on third axis direction of two sides of a pair of of moving contact 11 Long portion 100,101 (B referring to Fig.1).Movable extension 100 fixes extension 120b, and movable extension 101 towards second Towards the second fixed extension 130b.

Movable extension 100 includes in the lateral direction towards fixing terminal 12 (fixing component 16) protrusion outstanding 10a.Movable extension 101 includes in the lateral direction towards fixing terminal 13 (fixing component 16) protrusion 10b outstanding.Tool Body, the central portion for the width (corresponding to up and down direction) that protrusion 10a configured in movable contact 10 (movable extension 100). Similarly, protrusion 10b configuration is in the center of the width (corresponding to up and down direction) of movable contact 10 (movable extension 101) Portion.Optionally, protrusion 10a, 10b can be both configured to more lean on side table relative to the central portion of the width of movable contact 10 Face.In this embodiment, protrusion 10a, 10b has prism shape.The size of protrusion 10a measured in the lateral direction (i.e. the height of protrusion 10a) is less than from movable contact 10 towards the moving contact 11a outstanding of fixing component 16 in right and left The size measured upwards.Similarly, the size (i.e. the height of protrusion 10b) of protrusion 10b measured in the lateral direction is small In from movable contact 10 towards the size of the moving contact 11b outstanding of fixing component 16 measured in the lateral direction.Protrusion 10a, 10b and movable contact 10 form the corresponding portion of identical components.That is, protrusion 10a, 10b can be by such as copper The conductive material of alloy is made.

When calutron A10 operation, movable contact 10 is around the third axis direction rotation as pivot center.Movably The rotation of contact 10 is so that two moving contacts 11a, 11b are moved between closed position and open position.As made here , closed position be each moving contact 11 with moving contact 11 towards the position that contacts of fixed contact 14 or 15.It opens Position be each moving contact 11 not with moving contact 11 towards the position that contacts of fixed contact 14 or 15.

When a pair of of moving contact 11 is in the close position (when contact making device A1 is in ON), fixing terminal 12 and 13 It is electrically short-circuited to each other via movable contact 10.Therefore, when contact making device A1 is in ON, fixing terminal 12 and 13 is each other in an electrically conductive, and And alternating current is supplied from AC power source to external device (ED).On the other hand, (work as when a pair of of moving contact 11 is in an open position When contact making device A1 is in OFF), fixing terminal 12 and 13 is non-conductive each other.Therefore, it is not supplied from AC power source to external device (ED) Alternating current.

<explanation of calutron A10>

As depicted in figs. 1 and 2, calutron A10 includes coil 20, solenoid 30, iron core 40, magnetic yoke 50,60 and of armature Hinge spring 70.The pole piece 61 (will illustrate later) of iron core 40, magnetic yoke 50 and armature 60 is all (such as electric by magnetic material Magnetic soft iron etc.) it is made.The A of Fig. 1 is the perspective view for removing the electromagnetic relay 1 of lid C11 (will illustrate later).

Coil 20 is by the way that around the outer peripheral surface of solenoid 30, (when from above coil 20) wound wire is (all clockwise Such as copper wire) and formed.Coil 20 is made of the electric wire of the outer peripheral surface winding around solenoid 30.As shown in the A of Fig. 1, coil 20 It further include two coil terminals 21,22.One end of winding is electrically connected to coil terminals 21, and the other end of winding is electrically connected to coil Terminal 22.

Applying voltage between coil terminals 21 and 22 allows to supply electric current to coil 20 via coil terminals 21 and 22, from And generate magnetic flux.

Solenoid 30 is made of the material (such as synthetic resin material) with electrical insulation characteristics, and is formed cylinder Shape.Solenoid 30 is configured so that its axis is consistent with up and down direction.

Iron core 40 is formed the column grown in the up-down direction.Iron core 40 is inserted into the hollow portion 31 of solenoid 30, and Expose from solenoid 30 at the both ends (both ends i.e. in the up-down direction) of the longitudinally of iron core 40.First lengthwise side of iron core 40 It is greater than the diameter of intermediate portion to the diameter of end (i.e. upper end), and towards armature 60.In the following description, iron core 40 First end will be referred to as " iron core suction unit 41 " hereafter.On the other hand, the second longitudinally end (lower end of iron core 40 Portion) be inserted through magnetic yoke 50 the first plate 52 (later will explanation) insertion hole 54, and it is integrated with the first plate 52 by caulked.

Magnetic yoke 50 is by being formed to have L tee section with following middle part 51: the middle part 51 is rectangular slab, upper and lower It is grown on direction, to the left warpage.Magnetic yoke 50 is made of the first plate 52 and the second plate 53.The magnetic pole of magnetic yoke 50 and iron core 40 and armature 60 Piece 61 is formed together the magnetic circuit passed through for magnetic flux, wherein generating magnetic flux when coil 20 is powered.First plate 52 and the second plate 53 It is all formed as rectangular plate shape.First plate 52 is arranged at one end (i.e. lower end) along axis (up and down direction) of coil 20. First plate 52 has the insertion hole 54 penetrated through (in the up-down direction) on its thickness.The second end insertion insertion hole of iron core 40 In 54 and pass through caulked integration.Second plate 53 is set to the right side of coil 20.

Armature 60 includes pole piece 61, insulation division 62 and fixinig plate 63.Pole piece 61 is and with following middle part 66 Be formed with L tee section: the middle part 66 is rectangular slab, is grown in the lateral direction, downward warpage.Pole piece 61 includes the One plate 64 and the second plate 65.First plate 64 and the second plate 65 each are formed as the shape of rectangular slab.As shown in Fig. 2, pole piece 61 The first plate 64 top end part towards iron core suction unit 41, which forms a part of iron core 40.First plate 64 There is notch 67 at its both ends.Both ends a pair of of clamping piece 55 outstanding and notch from the top of the second plate 53 of magnetic yoke 50 Portion 67 engages and is supported in a manner of it can freely swing.Second plate 65 is joined to insulation division 62.

Fixinig plate 63 is joined to insulation division 62 in a manner of downward projection of.Movable contact 10 be joined to fixinig plate 63 can Spring 17 of moving engagement.That is, movable contact 10 is engaged via fluid spring 17 with armature 60.

Armature 60 is configured to the point engaged as a pair of of clamping piece 55 of a pair of fulcrum around armature 60 with magnetic yoke 50 It rotates between the first location and the second location, wherein the first plate 64 is contacted with iron core suction unit 41 at first position, At two positions, the first plate 64 is not contacted with the iron core suction unit 41 of iron core 40.

By the electromagnetic force generated when coil 20 is powered, the first plate 64 of armature 60 is by the iron core attraction towards iron core 40 Portion 41 attracts or discharges from the iron core suction unit 41 of iron core 40.When armature 60 is attracted towards the iron core suction unit 41 of iron core 40 (i.e. when armature 60 is shifted from the second position to first position), 63 right shift of the second plate 65, insulation division 62 and fixinig plate. When the second plate 65,63 right shift of insulation division 62 and fixinig plate, the also right shift of movable contact 10.On the other hand, work as armature 60 from the iron core suction unit 41 of iron core 40 discharge when (when armature 60 from first position to the second position shift when), the second plate 65,63 shifted left of insulation division 62 and fixinig plate.It is movable to touch when the second plate 65,63 shifted left of insulation division 62 and fixinig plate First 10 also shifted lefts.

Hinge spring 70 configures between magnetic yoke 50 and armature 60.Hinge spring 70 include spring leaf 71, spring leaf 71 to Push the top of the insulation division 62 of armature 60.The spring leaf 71 for being pressed downward the top of insulation division 62 keeps the first plate 64 of armature 60 It is contacted in the iron core suction unit 41 that coil 20 is not powered on Shi Buyu iron core 40.When coil 20 is powered, the iron core of iron core 40 attracts The magnetic force in portion 41 overcomes the pressure of spring leaf 71, so that the first plate 64 of armature 60 is contacted with the iron core suction unit 41 of iron core 40.

Next, will illustrate shell C1.

Shell C1 can be made of the material (such as synthetic resin) with electrical insulation property.It can be for example by making to cover C11 is assembled to base portion C12 via joint fastener such as is tied by making to cover C11 and base portion C12 using thermosetting resin bonding agent It closes and forms shell C1.Shell C1 accommodates contact making device A1 and calutron.As shown in Fig. 2, the third terminal of fixing terminal 12 The top end part of the third terminal portion 13c of the fixing terminal 13 of the top end part and contact making device A1 of portion 12c is from the lower surface of base portion C12 Expose.In addition, as shown in Fig. 2, the corresponding portion of the coil terminals 21,22 of calutron A10 is showed from the following table of base portion C12 Out.

<explanation of the operation of electromagnetic relay 1>

Next, how explanation is operated according to the electromagnetic relay 1 of the embodiment.In the following description, work as contact The state of movable contact 10 will be hereinafter referred to as " original state " when device A1 is in OFF.

Coil 20 is set to generate magnetic flux the winding energization of coil 20 when contact making device A1 is in OFF state.Which increase The intensity of magnetic flux between first plate 64 of the pole piece 61 of armature 60 and the iron core suction unit 41 of iron core 40.As a result, the first plate 64 and iron core suction unit 41 with ferromagnetism attraction and attract one another.This make pole piece 61 counterclockwise rotation from the second position to the One position is mobile.When pole piece 61 is mobile to first position, the second plate 65, insulation division 62 and the fixinig plate 63 of pole piece 61 to It moves right.At this point, the second plate 65, insulation division 62 and the fixinig plate 63 of pole piece 61 are around the third axis as pivot center Direction rotates clockwise.This makes movable contact 10 move right, i.e., counterclockwise around the third axis direction as pivot center Rotation.As a result, 10 right shift of movable contact, thus keep moving contact 11a, 11b mobile to closed position, wherein in closure position Set place, moving contact 11a, 11b respectively with moving contact 11a, 11b respectively for fixed contact 14,15 contact (referring to scheming 5 A).This makes contact making device A1 be in ON, so that fixing terminal 12,13 is each other in an electrically conductive.

Next, powering off the winding of coil 20 so that the magnetic generated by coil 20 It is logical to disappear.Therefore, the top of the insulation division of armature 60 is pressed downward by the pressure that the spring leaf 71 of hinge spring 70 applies.This makes The pole piece 61 of armature 60 is rotated clockwise with mobile from first position to the second position.When pole piece 61 is mobile to the second position When, the second plate 65, insulation division 62 and the fixinig plate 63 of pole piece 61 are moved to the left.At this point, the second plate 65 of pole piece 61, absolutely Edge 62 and fixinig plate 63 are rotated counterclockwise around the third axis direction as pivot center.This make movable contact 10 to It moves left.As a result, movable contact 10 becomes " original state " from the state of right shift, thus make moving contact 11a, 11b to Open position is mobile, wherein in open position, moving contact 11a, 11b respectively with moving contact 11a, 11b institute respectively for Fixed contact 14,15 release contact (referring to Fig. 5 B).This makes contact making device A1 be in OFF so that fixing terminal 12,13 that This release electrical connection and it is non-conductive.

<explanation of cutting ability>

When contact making device A1 becomes OFF from ON, between moving contact 11a and fixed contact 14 and in moving contact Electric arc (arc) is generated between 11b and fixed contact 15.Then, the contact making device A1 of the embodiment makes electric arc between contact It is mobile.Thus the electric arc moved is cut off, this is because the alternating voltage applied becomes zero.Even if in moving contact 11a and admittedly High voltage is applied between fixed contact 14 between moving contact 11b and fixed contact 15 or has high current flowing, electromagnetism after Electric appliance 1 also makes the electric arc for generating and being stranded in contact between contacts move away from contact, thus reduces the bad of contact surface Change.That is, which improve the reliabilities of electromagnetic relay 1.

In the following description, it is fixed as an example, will illustrate that electric current I1 is flowed into from fixing terminal 12 by movable contact 10 The case where terminal 13.

In this case, in movable contact 10, electric current I1 is flowed from moving contact 11a to moving contact 11b, so that The direction of the magnetic flux B1 generated between movable contact 10 and fixed contact 14,15 is downwards (referring to Fig. 6).

In addition, being flowed through when electric current I1 flows in movable contact 10 from moving contact 11a to moving contact 11b The electric current of first end sub-portion 12a flows into fixed contact 14.That is, flowing through movable contact on third axis direction The direction of 10 electric current I1 is contrary with the component for the electric current for flowing through the first fixed extension 120a.Therefore, it flows It is greater than by the third axis direction component of the electric current of the first fixed extension 120a and flows through the second fixed extension 120b Electric current third axis direction component.Which increase generated in first end sub-portion 12a in movable contact 10 and fixed touching The density of all downward magnetic fluxs in magnetic flux B1 between point 14,15.

In addition, being flowed through when electric current I1 flows in movable contact 10 from moving contact 11a to moving contact 11b The electric current of first end sub-portion 13a flows out fixed contact 15.That is, flowing through movable contact on third axis direction The direction of 10 electric current I1 is contrary with the component for the electric current for flowing through the first fixed extension 130a.Therefore, it flows It is greater than by the third axis direction component of the electric current of the first fixed extension 130a of first end sub-portion 13a and flows through second The third axis direction component of the electric current of fixed extension 130b.Which increase generated in first end sub-portion 13a movable The density of all downward magnetic fluxs in magnetic flux B1 between contact 10 and fixed contact 14,15.

Then, the Lorentz force F1 between moving contact 11a and fixed contact 14 and moving contact 11b and fixed contact 15 Between Lorentz force F2 all effects (referring to Fig. 6) outward.Specifically, Lorentz force F1 is from moving contact 11a towards protrusion 10a effect, Lorentz force F2 are acted on from moving contact 11b towards protrusion 10b.

In the case where electric current I1 flows between fixing terminal 12 and fixing terminal 13 via movable contact 10 by contact Device A1 is switched to OFF from ON and to generate electric arc 5 between moving contact 11a and fixed contact 14 (referring to Fig. 6).Also can Electric arc 6 is generated between movable contact 11b and fixed contact 15 (referring to Fig. 6).Specifically, the top end part of moving contact 11a 110 with Electric arc 5 is generated between the top end part 140 of fixed contact 14, on the top of the top end part of moving contact 11b 110 and fixed contact 15 Electric arc 6 is generated between portion 150.

Since Lorentz force F1 and F2 are acted on outward, so electric arc 5 and 6 is pulled outwardly.This is moved out electric arc 5 and 6 Dynamic (referring to electric arc 5a and 6a shown in Fig. 6).Specifically, backoff portion 111 of the end of electric arc 5 to moving contact 11a Mobile, another end of electric arc 5 is mobile to the backoff portion 141 of fixed contact 14, thus in moving contact 11a and fixed contact Electric arc 5a is generated between 14 corresponding backoff portion 111 and backoff portion 141.One end keeping out of the way to moving contact 11b of electric arc 6 Portion 111 is mobile, another end of electric arc 6 is mobile to the backoff portion 151 of fixed contact 15, thus in moving contact 11b and admittedly Electric arc 6a is generated between the corresponding backoff portion 111 and backoff portion 151 of fixed contact 15.

Electric arc 5a and 6a are drawn further out by Lorentz force F1 and F2, thus electric arc 5a and 6a is made to be displaced outwardly (ginseng According to electric arc 5b and 6b shown in Fig. 6).Specifically, an end of electric arc 5a is mobile to protrusion 10a, and electric arc 5a's is another End is mobile to the second fixed extension 120b for fixed contact 14, thus in the fixed extension of protrusion 10a and second Electric arc 5b is generated between 120.An end of electric arc 6a is mobile to protrusion 10b, and another end of electric arc 6a is to for solid The fixed extension 130b of the second of fixed contact 15 is mobile, thus in the corresponding backoff portion 111 of moving contact 11b and fixed contact 15 And electric arc 6b is generated between 151.

In this embodiment, have via the electric current I1 that movable contact 10 is flowed from fixing terminal 12 to fixing terminal 13 The relatively large amount of about 100A.Therefore, between moving contact 11a and fixed contact 14 and moving contact 11b and solid When generating electric arc between fixed contact 15, the load on moving contact 11a, 11b and fixed contact 14,15 is got higher.Which increase solid The abrasion of the contact member of fixed contact and moving contact melts the chance so that contact deterioration.

Therefore, according to the embodiment, protrusion 10a, 10b are set for movable contact 10 to help to utilize Lorentz force F1 and F2 is displaced outwardly the electric arc generated.Moving contact 11a, 11b can be mitigated in the case where generating electric arc and consolidated Load on fixed contact 14,15.That is, which reduce the contact member of fixed contact and moving contact abrasion or melt with The chance for deteriorating contact.

In addition, according to the embodiment, the ON/OFF state of contact making device A1 by two pairs mobile and fixed contact ( Movable contact 11a and this pair of contact of fixed contact 14 and moving contact 11b and fixed contact 15 this pair of contact) switching.It can With using only a pair of contact (i.e. this pair of contact of moving contact and fixed contact) come the ON/OFF state of double-throw contact device A1. When switching ON/OFF state using only a pair of contact, the movable contact with moving contact is needed with spring property.Separately Outside, it in order to ensure certain current capacity, needs on top of the other to stack one stacking of multiple plates.It is same with this When, according to the embodiment, switch ON/OFF state using two pairs of contacts, therefore, with utilization only a pair of contact change-over ON/ The case where OFF state, is different, and movable contact 10 need not have spring property.In addition, it is not necessary that in order to ensure certain electric current holds It measures and stacks one stacking of multiple plates on top of the other.That is, switching ON/ with using only a pair of contact The case where OFF state, is compared, and this simplifies the constructions of movable contact 10.In addition, in the electromagnetic relay 1 according to the embodiment In, movable contact 10 need not have spring property, therefore, there is no need to consider because being related to causing due to a large amount of electric current supplies generate heat The spring property of movable contact 10 may deteriorate.

In addition, for example, it is desired to ensuring contact gap so that contact making device A1 meets IEC standard.It is postulated that in order to allowing in benefit Switch a large amount of electric current flowings in the case where ON/OFF state with a pair of contact and ensure between moving contact and fixed contact Clearance distance (contact gap) be X1.When using two pairs of contacts to switch ON/OFF state, moving contact 11a and fixed touching The summation of the clearance distance X3 between clearance distance X2 and moving contact 11b and fixed contact 15 between point 14 can be equal to X1 (i.e. X1=X2+X3), to allow a large amount of electric current flowings.That is, compared with switching ON/OFF state using a pair of contact, Enough contact gaps are easier to ensure that using two pairs of contacts to switch ON/OFF state.

In this embodiment, fixing terminal 12 has notch 12e, and fixing terminal 13 has notch 13e.This allows Electric current I1 is input to fixed contact 14 or exports from fixed contact 14, and electric current I1 is allowed to export or input from fixed contact 15 To fixed contact 15 with the contrary current component with direction Yu the electric current I1 for flowing through movable contact 10.Specifically, it flows It crosses the electric current I1 of the first end sub-portion 12a for the fixing terminal 12 for being provided with fixed contact 14 and flows through and be provided with fixed contact 15 The electric current I1 of the first end sub-portion 13a of fixing terminal 13 has direction and flows through the contrary of the electric current I1 of movable contact 10 Current component.

Now, the B of A and Fig. 4 referring to Fig. 4 are illustrated electric current I1 how to pass through movable contact 10 from fixing terminal 12 to Fixing terminal 13 flows.

Firstly, free flow for the A referring to Fig. 4 to be crossed to the electric current of fixing terminal 12.Electric current I1 is input to solid from external device (ED) First 12f and second 12g of the third terminal portion 12c of fixed end 12.After this, upward by third terminal portion 12c The electric current I1 that flowing is input to first 12f and second 12g is met one another at second end sub-portion 12b.From second end sub-portion 12b flows to the electric current I1 guide openings portion 12d of first end sub-portion 12a (i.e. towards moving contact 11a).At this point, flowing through first end The electric current I1 of sub-portion 12a includes being parallel to third axis (i.e. on the direction that fixing terminal 12 and 13 is arranged side-by-side) to flow outward And finally enter the current component of fixed contact 14.

Next, will illustrate the electric current for flowing through fixing terminal 13 referring to the B of Fig. 4.Since fixing terminal 13 has notch 13e, so being parallel to third axis (i.e. in the side that fixing terminal 12 and 13 is arranged side-by-side from the electric current I1 that fixed contact 15 exports Inwardly flowing upwards), then flows into second end sub-portion 13b.The electric current I1 for flowing through second end sub-portion 13b flows into third terminal portion 13c is then divided into two strands of electric currents and flows down through first 13f and second 13g.After this, electric current I1 is defeated to external device (ED) Out.As being able to observe that, the electric current I1 of the first end sub-portion 13a of fixing terminal 13 is flowed through after the output of fixed contact 15 With the current component for being parallel to third axis (i.e. on the direction that fixing terminal 12 and 13 is arranged side-by-side) and inwardly flowing.

As being able to observe that, notch 12e being set for fixing terminal 12 and is made in the first end towards movable contact 10 The electric current I1 for being input to fixed contact 14 in sub-portion 12a or exporting from fixed contact 14 has direction and flows through movable contact 10 The contrary current component of electric current I1.Make in addition, notch 13e is arranged for fixing terminal 13 towards movable contact 10 First end sub-portion 13a in be input to fixed contact 15 or the electric current I1 that exports from fixed contact 15 has direction and flows through movable The contrary current component of the electric current I1 of contact 10.

The electric current I1 for flowing through the first end sub-portion 12a of fixing terminal 12 has direction and flows through the electric current I1 of movable contact 10 Contrary current component.Therefore, by the current component in the first end sub-portion 12a of fixing terminal 12 movable The magnetic flux generated between contact 10 and fixing terminal 12 can have direction identical with above-mentioned magnetic flux B1.Similarly, it flows through solid The electric current I1 of the first end sub-portion 13a of fixed end 13 has the contrary electricity in direction with the electric current I1 for flowing through movable contact 10 Flow component.Therefore, by the current component in the first end sub-portion 13a of fixing terminal 13 in movable contact 10 and fixing terminal The magnetic flux generated between 13 can have direction identical with above-mentioned magnetic flux B1.

It is touching which further increases the Lorentz force F1 generated between moving contact 11a and fixed contact 14 and movably The intensity of the Lorentz force F2 generated between point 11b and fixed contact 15.

In addition, flowing successively through third terminal portion 12c and second end from the electric current I1 that external device (ED) is input to fixing terminal 12 Then sub-portion 12b is flowed towards moving contact 11a (referring to Fig. 4 via the first fixed extension 120a of first end sub-portion 12a A).That is, the amount for flowing through the electric current I1 of the second fixed extension 120b, which is less than, flows through the first fixed extension 120a's The amount of electric current I1.In other words, the current component for flowing through the first fixed extension 120a, which is greater than, flows through the second fixed extension 120b Current component.Therefore, the path including the first fixed extension 120a exists as following path: prolonging with the second fixation is flowed through The path of the electric current of long portion 120b is compared, which allows a greater amount of electric current flowings.As a result, as described above, flowing through first end The electric current I1 of sub-portion 12a is parallel to third axis (on the direction that fixing terminal 12 and 13 is arranged side-by-side) and flows outward, and most Fixed contact 14 is flowed into eventually.

At the same time, the electric current I1 inputted from movable contact 10 to fixing terminal 13 flows successively through the first fixed extension 130a, second end sub-portion 13b and third terminal portion 13c (referring to the B of Fig. 4).Due to being provided with notch in this embodiment 13e flows through first so being less than via the current component of the second fixed extension 130b electric current I1 for flowing through second end sub-portion 13b The current component of fixed extension 130a.Therefore, the path including the first fixed extension 120a exists as following path: with The path for flowing through the electric current of the second fixed extension 120b is compared, which allows a greater amount of electric current flowings.As a result, institute as above It states, the electric current I1 for flowing through first end sub-portion 13a is parallel to third axis (on the direction that fixing terminal 12 and 13 is arranged side-by-side) Inwardly flowing, and finally flow out fixed contact 15.

Note that not fixing terminal 12 and fixing terminal 13 must both have themselves notch 12e, 13e.

If fixing terminal 12 does not have notch 12e, the electric current I1 for being input to fixed contact 14 flows bottom-up It is dynamic.In this case, generated in the first end sub-portion 12a of fixing terminal 12 between movable contact 10 and fixing terminal 12 Magnetic flux do not have direction identical with above-mentioned magnetic flux B1, and electric arc still can be displaced outwardly.In this case, electric arc End is by the magnetic flux between movable contact 10 and fixing terminal 12 generated in the first end sub-portion 12a of fixing terminal 12 Direction influence and obliquely moved towards upper exterior angle.Therefore, if fixing terminal 12 does not include notch 12e, protrusion Portion 10a is suitably disposed at the upper exterior angle of movable extension 100.

If fixing terminal 13 do not have notch 13e, from fixed contact 14 export electric current I1 from top to flow down It is dynamic.In this case, generated in the first end sub-portion 13a of fixing terminal 13 between movable contact 10 and fixing terminal 13 Magnetic flux do not have direction identical with above-mentioned magnetic flux B1, and electric arc still can be displaced outwardly.In this case, electric arc End is by the magnetic flux between movable contact 10 and fixing terminal 12 generated in the first end sub-portion 13a of fixing terminal 13 Direction influence and obliquely moved towards upper exterior angle.Therefore, if fixing terminal 13 does not include notch 13e, protrusion Portion 10b is suitably disposed at the upper exterior angle of movable extension 101.

<explanation of the implementation of electromagnetic relay 1>

Next, how description is implemented electromagnetic relay 1.

Electromagnetic relay 1 is installed on substrate 200 to form electronic device 500.In other words, electronic device 500 includes electromagnetism Relay 1 and substrate 200.There is substrate 200 first opening portion 201, the second opening portion 202, third opening portion 203 and the 4th to open The long side of oral area 204, the first opening portion 201 and the second opening portion 202 extends on third axis direction, third opening portion 203 Extend in the lateral direction with the long side of the 4th opening portion 204 (referring to Fig. 7).

The third terminal portion 12c of fixing terminal 12 is inserted into the first opening portion 201.The third terminal portion 13c of fixing terminal 13 It is inserted into the second opening portion 202.Coil terminals 21 are inserted into third opening portion 203.Coil terminals 22 are inserted into the 4th opening portion 204.

Next, by the shape of corresponding third terminal the portion 12c and 13c that describe fixing terminal 12 and 13.

Since the third terminal portion 12c of fixing terminal 12 has notch 12h, so third terminal portion 12c is in third axis First 12f and second 12g is divided on line direction (referring to the A of Fig. 4).In this embodiment, first 12f and second The corresponding size W1 and W2 that measure on third axis direction of piece 12g is equal to each other and greater than notch 12h in third The size W3 measured on axis direction (referring to the A of Fig. 8).By being surveyed on third axis direction for first 12f and second 12g The value that the corresponding size W1 and W2 of amount are set as relatively large allows larger amount of electric current to flow through contact making device A1.First 12f and The combination of second 12g corresponds to the cutting part according to the disclosure.

Since the third terminal portion 13c of fixing terminal 13 has notch 13h, so third terminal portion 13c is in third axis It is divided into first 13f and second 13g on line direction (referring to the B of Fig. 4).In this embodiment, first 13f and The corresponding size of two 13g measured on third axis direction is equal to each other and greater than notch 13h in third axis The size measured on direction (referring to the A of Fig. 8).By the phase of first 13f and second 13g measured on third axis direction Should be dimensioned to relatively large value allows larger amount of electric current to flow through contact making device A1.The group of first 13f and second 13g Close the cutting part corresponded to according to the disclosure.

In this embodiment, first of first 12f and second 12g of fixing terminal 12 and fixing terminal 13 13f and second 13g is all of the same size.

Both ends of first 12f of fixing terminal 12 on third axis direction have tapered portion 121 and 122.Fixing end Both ends of second 12g of son 12 on third axis direction have tapered portion 123 and 124.

Both ends of first 13f of fixing terminal 13 on third axis direction have tapered portion 131 and 132.Fixing end Both ends of second 13g of son 13 on third axis direction have tapered portion 133 and 134.

Base portion C12 has downward projection of four leg C20 (A and Fig. 7 referring to Fig.1) at bottom.

The corresponding bottom end C21 of leg C20 is located at the lower section of the respective end P1 and P2 of notch 12h and 13h (referring to Fig. 8 A).Therefore, when electromagnetic relay 1 is installed on substrate 200, the respective end P1 and P2 of notch 12h and 13h are in upper and lower It is located in the position than substrate 200 by shell C1 upwards (referring to the B of Fig. 8).

In this state, electromagnetic relay 1 and substrate 200 are fixed together by welding, such as by making electromagnetism relay Device 1 and substrate 200 be subjected to spraying in the solder of melting the flowing welding (flow soldering) in the gap between them and It is fixed together.When fixing terminal 12 is welded on substrate 200, the solder of melting along fixing terminal 12 notch 12h is crept up to fill notch 12h using solder 300 (referring to Fig. 9).Similarly, when fixing terminal 13 is welded to base When on plate 200, the solder of melting is crept up along the notch 13h of fixing terminal 13 to fill notch using solder 310 13h (referring to Fig. 9).That is, the presence of notch 12h and 13h greatly increase wetability not only so as to the short time Welding is completed, moreover, even if when needing will weld together with the part of relatively low thermal resistance with electromagnetic relay 1, it can also To increase weld strength while adverse effect of the heat for the solder for reducing melting to the part.

In addition, first 12f and second 12g of fixing terminal 12 is respectively provided with tapered portion 122 and 123, thus prevent The solder crept up along notch 12h extends downwards from the respective top of first 12f and second 12g (referring to Fig. 9). Similarly, first 13f and second 13g of fixing terminal 13 is respectively provided with tapered portion 132 and 133, thus prevents along cutting The solder that oral area 13h is crept up extends downwards from the respective top of first 13f and second 13g (referring to Fig. 9).

In the above-described embodiment, third terminal portion 12c, 13c all has (i.e. first and second) into two pieces Shape.However, the shape is only example and is not necessarily to be construed as limiting.Optionally, third terminal portion 12c, 13c can be divided It is cut into three pieces or more.In this case, being measured on third axis direction per a piece of in the three pieces or more Size is also greater than the size of associated notch measured on third axis direction.

<the first variation example>

In the above-described embodiment, notch 12e and 13e is arranged for fixing terminal 12 and 13 to be input to two fixations The electric current I1 of one of contact 14 and 15 and the electric current I1 exported from another fixed contact have direction and flow through movable contact The contrary current component of 10 electric current I1.However, fixing terminal 12 and 13 need not have this be configured such that flow through The electric current I1 of fixing terminal 12 and 13 has the contrary current component in direction with the electric current I1 for flowing through movable contact 10.And Being that one of two fixing terminals 12 and 13 only need to be formed so that from external device (ED) is input to the fixing terminal 12 Electric current I1 is flowed up in the contrary side with the electric current I1 for flowing through movable contact 10.

For example, fixing terminal 12 can be between first end sub-portion 12a and second end sub-portion 12b as shown in the A of Figure 10 There is opening portion 12k at engaging portion.In this case, the first connection part 12i be arranged in opening portion 12k in third axis direction On one end at, the second connection part 12j be arranged in opening portion 12k at the other end on third axis direction.First connection Portion 12i is connected to the first fixed extension 120a.Second connection part 12j is connected to the second fixed extension 120b.First connection The size on third axis direction of portion 12i is bigger than the second connection part 12j's.Therefore, the electric current of the first connection part 12i is flowed through Current component be greater than flow through the second connection part 12j electric current current component.As a result, flowing through the first fixed extension 120a's Current component is greater than the current component for flowing through the second fixed extension 120b.

Similarly, as shown in the B of Figure 10, fixing terminal 13 can be between first end sub-portion 13a and second end sub-portion 13b Engaging portion at have opening portion 13k.In this case, the first connection part 13i be arranged in opening portion 13k in third axis side At upward one end, the second connection part 13j be arranged in opening portion 13k at the other end on third axis direction.First Socket part 13i is connected to the first fixed extension 130a.Second connection part 13j is connected to the second fixed extension 130b.First The size on third axis direction of socket part 13i is bigger than the second connection part 13j's.Therefore, the electricity of the first connection part 13i is flowed through The current component of stream is greater than the current component for flowing through the electric current of the second connection part 13j.As a result, flowing through the first fixed extension 130a Current component be greater than the component for flowing through the electric current of the second fixed extension 130b.

Therefore, there is direction from the electric current I1 that external device (ED) is input to a fixing terminal and flows through movable contact 10 The contrary current component of electric current I1.Another fixing terminal, which only needs to be formed so that from another fixing terminal, to be output to The electric current I1 of external device (ED) is flowed up in the contrary side with the electric current I1 for flowing through movable contact 10.This allows from another The electric current I1 that fixing terminal is output to external device (ED) has the contrary electricity in direction with the electric current I1 for flowing through movable contact 10 Flow component.

<the second variation example>

In the above-described embodiment, movable contact 10 includes the protrusion 10a and 10b with prism shape.However, this is only It is example and is not necessarily to be construed as limiting.

Optionally, movable contact 10 can also have a protrusion 10c, and protrusion 10c is by existing movable extension 100 End on third axis direction is bent towards fixing terminal 12 and forms (referring to Fig.1 1).For example, can be in movable extension Protrusion 10c is set on 100 entire width (corresponding to up and down direction).In addition, between protrusion 10c and movable contact 10 The angle, θ 1 of formation is suitably obtuse angle.By angle, θ 1 be set as obtuse angle allow to make fixed contact 14 and moving contact 11a it Between the electric arc that generates be easier to be displaced outwardly.On second axis direction, the top end part of protrusion 10c is towards first end sub-portion 12a。

Similarly, movable contact 10 can also have a protrusion 10d, and protrusion 10d is by existing movable extension 101 End on third axis direction is bent towards fixing terminal 13 and forms (referring to Fig.1 1).For example, can be in movable extension Protrusion 10d is set on 100 entire width (corresponding to up and down direction).In addition, shape between protrusion 10 and movable contact 10 At angle, θ 2 suitably be obtuse angle.Angle, θ 2, which is set as obtuse angle, to be allowed to make between fixed contact 15 and moving contact 11b The electric arc of generation is easier to be displaced outwardly.On second axis direction, the top end part of protrusion 10d is towards second end sub-portion 12b.

In this variant, protrusion is set on the entire width of movable extension 100 (corresponding to up and down direction) 10c.However, this is only example and is not necessarily to be construed as limiting.Alternatively it is also possible to which the width in movable extension 100 is (corresponding In up and down direction) only a part be arranged protrusion 10c.In such a case it is possible to which the width in movable extension 100 is (corresponding In up and down direction) top, lower part or central portion portion protrusion 10c is set.It equally, can also be in the width of movable extension 100 Protrusion 10d is arranged in top, lower part or the central portion of degree (corresponding to up and down direction).

<other variation examples>

Other variation examples will be enumerated one by one.Note that can suitably be adopted in conjunction with above-mentioned example embodiment With will be in any one of variation example described below.

In above-mentioned example embodiment, moving contact 11a, 11b and fixed contact 14,15 each are formed as in left and right Circle when side looks up, and all have two sections of the shape that diameter reduces towards another contact towards itself.However, Moving contact 11a, 11b and fixed contact 14,15 need not have this shape.Optionally, moving contact 11a, 11b and fixed touching Point 14,15 can also have three sections or more of shape.

In addition, in above-mentioned example embodiment, two kinds of contact (i.e. moving contact 11a, 11b and fixed touching 15) point 14 each is formed as the shape with multistage.However, this is only example and is not necessarily to be construed as limiting.But at least A type of contact (i.e. moving contact 11a, 11b or fixed contact 14,15 or moving contact 11a, 11b and fixed contact 14, 15 liang of sides) this multistage shape can be formed with.

For example, if fixed contact 14,15 is formed with multistage shape and moving contact 11a, 11b are formed With non-multistage shape, then moving contact 11a, 11b can have the thickness of reduction.As used herein, moving contact The thickness of 11a, 11b refer to their size measured in the lateral direction.As described above, movable contact 10 and moving contact 11a, 11b are mobile with electric arc pattern.Therefore, the thickness for reducing moving contact 11a, 11b allows the rolling force of arc motion (rolling force) reduces.

In above-mentioned example embodiment, protrusion 10a, 10b has prism shape.However, this be only example without It should be interpreted to limit.Optionally, protrusion 10a, 10b can have polygonal prism shape or column.Optionally, protrusion 10a, 10b can also have polygon pyramid shape shape or conical by its shape.That is, protrusion 10a, 10b can have it is any Shape, as long as the surface towards fixing terminal 12,13 of protrusion 10a, 10b from movable contact 10 is prominent.Even so, But the height of protrusion 10a, 10b need to be less than from movable contact 10 towards the moving contact 11a outstanding of fixing component 16, The size of 11b measured in the lateral direction.

In above-mentioned example embodiment, movable contact 10 includes the protrusion at the both ends on its third axis direction Portion 10a, 10b.However, this is only example and is not necessarily to be construed as limiting.But movable contact 10 may include in its third axis The protrusion at least one end on line direction.

In addition, in the above-described embodiment, protrusion 10a, 10b is arranged for movable contact 10.However, this be only example and It is not necessarily to be construed as limiting.Protrusion 10a, 10b can be set at least one of movable contact 10 or fixing component 16.Example Such as, protrusion 10a, 10b are set if it is fixing component 16, it is prominent for the second fixed extension 120b setting of fixing terminal 12 Portion 10a is played, and protrusion 10b is set for the second fixed extension 130b of fixing terminal 13.In addition, alternately or additionally Protrusion 10c, 10d is arranged for movable contact 10 in ground, and fixing terminal 12,13 can be by making it on third axis direction End towards movable contact 10 be bent and be provided with protrusion.

In addition, in above-mentioned example embodiment, protrusion 10a, 10b and movable contact 10 form the phase of same component Answer part.However, this is only example and is not necessarily to be construed as limiting.Optionally, protrusion 10a, 10b and movable contact 10 can be with Belong to two different components.In this case, movable contact 10 from protrusion 10a, 10b will there are different electric currents to conduct Property, therefore, compared with the case where movable contact 10 and protrusion 10a, 10b form the corresponding portion of same component, electric arc will not Peace is quietly moved.Also, the advantages of mitigating the load on contact is realized in this case.In other words, make protrusion 10a, The corresponding portion that 10b and movable contact 10 form same component allows generated electric arc smoothly to move.

In above-mentioned example embodiment, there is the exemplary electrical magnetic relay 1 of contact making device A1 as application, said Monostatic relay is illustrated.However, this is only example and is not necessarily to be construed as limiting.Optionally, contact making device A1 is applied also for Unicoil locking relay or twin coil locking relay, this is suitable.

<summary of embodiment>

(1) electromagnetic relay 1 includes movable contact 10, a pair of of moving contact 11, fixing component 16, a pair of fixed contacts 14 With 15 and driving mechanism (calutron A10).A pair of of moving contact 11 is arranged at movable contact 10 and in one direction It is upper to be arranged side-by-side (on third axis direction).Fixing component 16 includes being arranged side-by-side in one direction towards movable contact 10 a pair of of fixing terminal 12,13.Fixed contact 14,15 is arranged at a pair of of fixing terminal 12,13 respectively.Driving mechanism makes can Moving contact 10 shifts, so that a pair of of moving contact 11 moves back and forth between closed position and open position, wherein in closure position Place is set, a pair of of moving contact 11 is contacted with a pair of fixed contacts 14,15 respectively, and in open position, a pair of of moving contact 11 is It is not contacted with a pair of fixed contacts 14,15.Movable contact 10 includes protruding in one direction in the two sides of a pair of of moving contact 11 The movable extension 100,101 of a pair.Fixing component 16 includes protruding in one direction in the two sides of a pair of fixed contacts 14,15 The fixed extension of a pair (second fixed extension 120b, 130b).Selected from by a pair, movably extension 100,101 and a pair are consolidated At least a pair of of the extension for determining the group that extension (second fixed extension 120b, 130b) is constituted has towards another pair extension Protrusion (such as protrusion 10a) outstanding.

Recently, a kind of electromagnetic relay with large capacity is provided.This large capacity electromagnetic relay has big touching Point electric current.Therefore, when generating electric arc between its fixed contact and moving contact, the contact structure of fixed contact and moving contact Part abrasion melts so that contact deteriorates, it is thus possible to cause some unstable of the operation of electromagnetic relay.

Therefore, according to the construction of (1), it is contemplated that touching by the electric current flowed between a pair of of moving contact 11 and movably 11 (such as moving contact 11a) of point and moving contact 11 towards fixed contact (such as fixed contact 14) between the electricity that flows Stream and the relationship between the magnetic flux that generates between movable contact 10 and fixing component 16, Lorentz force act on outward.This makes One end of the electric arc generated between contacts is mobile towards protrusion.Movement inhibits electric arc caused by making in this way The deterioration of fixed contact and moving contact.

(2) in the embodiment that can combine the electromagnetic relay 1 implemented with (1), respectively a pair of movable extension 100,101 setting protrusion 10a, 10b.

According to the construction, at the both ends of movable contact 10, setting protrusion 10a, 10b (are respectively used to movably extend respectively Portion 100,101) movement for accelerating the electric arc generated between two pairs of contacts, thus keep electric arc mobile to protrusion 10a, 10b.

(3) in another embodiment that can combine the electromagnetic relay 1 implemented with (2), protrusion 10a, 10b and can Moving contact 10 forms the corresponding portion of same component.

According to the construction, the corresponding portion permission for making protrusion 10a, 10b and movable contact 10 form same component is produced Raw electric arc smoothly moves.

(4) in the another embodiment that can combine the electromagnetic relay 1 implemented with any one of (1) to (3), choosing At least a pair of contact for the group that freely a pair of moving contact 11 and a pair of fixed contacts 14,15 are constituted has diameter towards towards this At least multistage shape of another pair contact reduction of a pair of contact.

The construction allows generated electric arc to be segmented movement from the top of contact towards protrusion.

(5) in the another embodiment that can combine the electromagnetic relay 1 implemented with any one of (1) to (4), stream The moving direction relative to movable contact 10 of a pair of of fixing terminal 12,13 is crossed towards the part (first terminal of movable contact 10 Portion 12a, 13a) electric current I1 have direction and the electric current I1 flowed between a pair of of moving contact 11 contrary electric current Component.

The configuration also increases the intensity of the magnetic flux generated between movable contact 10 and fixing terminal 12,13, thus also Increase the Lorentz force acted on outward.This accelerates the movement of the electric arc generated between contact, so that electric arc is to protrusion 10a, 10b are mobile.

(6) in the another embodiment that can combine the electromagnetic relay 1 implemented with any one of (1) to (5), lead to Crossing to rotate around a direction as pivot center shifts movable contact 10, so that a pair of of moving contact 11 is in closed position Move back and forth between open position.

The construction can mitigate fixed contact and movable in the case where generating electric arc in hinged electromagnetic relay Load on contact.

(7) in the another embodiment that can combine the electromagnetic relay 1 implemented with any one of (1) to (6), In Perpendicular to the direction for the direction both direction that a direction and movable contact 10 and a pair of of fixing terminal 12,13 are arranged side-by-side It is a part setting protrusion of at least a pair of of extension in (up and down direction).

The construction accelerates the one end of generated electric arc towards the movement of protrusion.

(summary)

As that can find out from the foregoing description, the contact making device (A1) according to first aspect includes: movable contact (10)；One To moving contact (11), it is arranged to be arranged side-by-side in one direction；A pair of of fixing terminal (12,13), a side It is arranged side-by-side upwards；And a pair of fixed contacts (14,15).A pair of of moving contact (11) is arranged for movable contact (10). A pair of of fixing terminal (12,13) is towards movable contact (10).A pair of fixed contacts (14,15) is arranged to be respectively used to a pair of solid Fixed end (12,13).Movable contact (10) is configured to move back and forth between closed position and open position, wherein being closed At position, a pair of of moving contact (11) contacts with a pair of fixed contacts (14,15) respectively, in open position, a pair of movable touching Point (11) does not contact with a pair of fixed contacts (14,15).At least one fixing terminal selected from a pair of of fixing terminal (12,13) Contact holding portion (first end sub-portion including side's movable contact (10) facing upwards in connection closed position and open position 12a,13a).Contact holding portion includes: first fixed extension (120a, 130a), in one direction from a fixing end The fixed contact of son is prominent towards another fixing terminal；Extension (120b, 130b) is fixed with second, far from fixed contact Another fixing terminal is prominent.For the current component for flowing into fixed contact in one direction or outflow fixation in one direction The current component of contact, the current component for flowing through the first fixed extension have than flowing through the second current component for fixing extension The big magnitude of current.

The construction accelerates the movement of the electric arc generated between contacts, thus reduces fixed contact and moving contact Deterioration.

In can be combined with first aspect in the contact making device (A1) implemented according to second aspect, a pair of of fixing terminal The fixing terminal with contact holding portion in (12,13) includes lead division (third terminal portion 12c, 13c), and lead division is opposite On the direction intersected with a direction and the component connecting with external device (ED) is connected in contact holding portion configuration.Lead division By relative to it is vertical with a direction and pass through fixed contact axis it is asymmetrical in a manner of be connected to contact holding portion.

For outputting and inputting the current component to external device (ED) from external device (ED), which allows to flow through the first fixation and prolongs The current component in long portion has different amounts of electric current with the current component for flowing through the second fixed extension.

In can combine with second aspect in the contact making device (A1) implemented according to the third aspect, lead division is via first Fixed extension is electrically connected to the second fixed extension.

According to the construction, when receiving electric current from external device (ED), flows out the electric current of lead division and directly flow into the from lead division One fixed extension.At the same time, the electric current for flowing out lead division directly will not flow into the second fixed extension from lead division.When from When external device (ED) receives electric current, this current component for allowing to flow through the first fixed extension has and flows through the second fixed extension The different amounts of electric current of current component.On the other hand, when exporting electric current to external device (ED), electric current is directly from the first fixed extension Portion flows into lead division.At the same time, electric current directly will not flow into lead division from the second fixed extension.This allows to fill when to outside The current component that the first fixed extension is flowed through when setting output electric current has and flows through the current component of the second fixed extension not The electric current of same amount.

The contact making device implemented can be being combined with any one of first aspect to the third aspect according to fourth aspect (A1) in, a pair of of fixing terminal (12,13) includes contact holding portion.Movable contact (10) in a pair of of moving contact (11) two Side includes a pair of movable extension (100,101) outstanding in one direction.Selected from by a pair of movable extension (100,101) At least a pair of of the extension for the group that corresponding second fixed extension (120b, 130b) is constituted with a pair of of fixing terminal (12,13) With towards another pair extension protrusion (such as protrusion 10a) outstanding.

According to the construction, the end of the electric arc generated between contacts is mobile towards protrusion.This allows generated electricity Arc is mobile, thus reduces the deterioration of fixed contact and moving contact.

In can combine with fourth aspect in the contact making device (A1) implemented according to the 5th aspect, pass through curved elongated portion Respective end so that end is respectively formed obtuse angle protrusion is arranged.

The electric arc that the construction allows to generate between contacts is on the direction that a pair of of fixing terminal arranges and from a fixation Terminal moves in the opposite direction to another fixing terminal.

According to the 6th aspect the contact making device implemented can be being combined with any one of in terms of first aspect to the 5th (A1) in, at least a pair of contact selected from the group being made of a pair of of moving contact (11) and a pair of fixed contacts (14,15) has The multistage shape that diameter reduces towards another pair contact towards at least a pair of contact.

The construction allows generated electric arc to be segmented movement from the respective top of contact towards protrusion.

In can be combined with first aspect in the contact making device (A1) implemented according to the 7th aspect, movable contact (10) quilt It is configured to shift and rotating around a direction as pivot center, so that a pair of of moving contact (11) is in closed position Move back and forth between open position.

Even if the construction also mitigates fixed contact and movable touching in the case where generating electric arc in hinged electromagnetic relay Load on point.

In can be combined with first aspect in the contact making device (A1) implemented according to eighth aspect, selected from a pair of of fixing end At least one fixing terminal of sub (12,13) include be divided into multi-disc and be joined to external device (ED) cutting part (first 12f, 13f and second 12g, 13g).

When a pair of of fixing terminal (12,13) are soldered, which increases the intensity of solder, while reducing melting The adverse effect of the heat of solder.

In can combine with eighth aspect in the contact making device (A1) implemented according to the 9th aspect, cutting part is divided into First (12f, 13f) and second (12g, 13g).First (12f, 13f) and second (12g, 13g) have than first Big termination width is spaced between (12f, 13f) and second (12g, 13g).

The electric current that the construction allows the electric current flowed into from external device (ED) or flows out in external device (ED) has the electric current increased Component.

Electromagnetic relay (1) according to the tenth aspect includes: the touching according to first aspect to any one of the 9th aspect Point device (A1)；With the calutron (A10) including coil (20).Movable contact (10) according to coil (20) whether by excitation and Displacement.

The construction accelerates the movement of the electric arc generated between contacts, thus reduces fixed contact and moving contact Deterioration.

Electronic device (500) according to the tenth one side includes: electromagnetic relay (1)；With substrate (200), for electromagnetism Relay (1) installation.Calutron (A10) includes: the contact making device (A1) according to the 8th or the 9th aspect；And calutron (A10).Calutron (A10) includes coil (20) and is configured to make movable contact according to whether coil (20) is motivated (10) it shifts.

The construction accelerates the movement of the electric arc generated between contacts, thus reduces fixed contact and moving contact Deterioration.

Description of symbols

1 electromagnetic relay

10 movable contacts

10a, 10b, 10c, 10d protrusion

11,11a, 11b moving contact

12,13 fixing terminal

12a, 13a first end sub-portion (contact holding portion)

12f, 13f first (cutting part)

12g, 13g second (cutting part)

14,15 fixed contact

20 coils

120a, 130a first fixes extension

120b, 130b second fixes extension

200 substrates

500 electronic devices

A1 contact making device

A10 calutron

I1 electric current